CVE-2026-72173
Description
In the Linux kernel, the following vulnerability has been resolved: fs/proc/task_mmu: do not warn on seeing non-migration pmd entry Patch series "mm/hmm: A fix and a selftest", v3. Patch 1 fixes a stale warning present from the time when only migration softleaf entries were supported at the PMD level. Patch 2 adds some code into hmm-tests.c which exercises the pagemap path for PMD device-private entries. This patch (of 2): pagemap_pmd_range_thp() warns if a non-present PMD is not a migration entry. This became false once device-private entries at the PMD level were added. Therefore, remove the stale migration-only assertion.
How to fix
- Linux Linux319caaca072adc564ac9c5357ed013909f23d5ab, cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | a30b48bf1b244f11bf9b6d20cdccfe0c2264130c ≤ v < 319caaca072adc564ac9c5357ed013909f23d5ab, a30b48bf1b244f11bf9b6d20cdccfe0c2264130c ≤ v < cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0, 6.19 | 319caaca072adc564ac9c5357ed013909f23d5ab, cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0 |
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